Add support for two SPI interfaces

Signed-off-by: Ajay Bhargav <[email protected]>

Author: ajaybhargav

libraries/SPI/SPI.cpp

@@ -149,3 +149,6 @@ void SPIClass::CSControl(bool level)
 #endif
 
 SPIClass SPI = SPIClass(SPI_DEFAULT_PORT);
+#if SPI_INTERFACES_COUNT > 1
+SPIClass SPI1 = SPIClass(SPI_PORT_1);
+#endif

libraries/SPI/SPI.h

@@ -137,5 +137,8 @@ class SPIClass
 };
 
 extern SPIClass SPI;
+#if SPI_INTERFACES_COUNT > 1
+extern SPIClass SPI1;
+#endif
 
 #endif